He is widely known in his division as a kind and friendly mand who strongly supports his students. He goes so far as to ignore official policy of the Academy and the government to help them. He was a progressive when it came to the rights of Swordsmen and believed they deserved equal respect to the Magic side

Years ago he was the partner of Liz Lisa Wastwood while they served in the Knight Order. When they retired they both took up jobs at the Knight Academy. He has a daughter named Kazuha who loved swordsmanship but he refused to teach her any. But she still chose to enroll in the Swordsmanship Division anyway, concealing the fact that she had become an Illegal Magician. For years he provided certain students with illegal Sacred Treasures believing that them being illegal was part of a conspiracy to keep the swordsmen in an inferior position.

Kanae Hayashizaki was summoned out of the blue to meet with him in the Swordsmanship Division staff room. Kazuki was guided to the right place by his sister Kanae Hayashizaki. He greeted him in a friendly manner, explaining that he was a old friend of Kazuki's teacher. He led him into a meeting with two members of the Knight Order Yukari Souma and Hajime Kondō. They had met during a quest where Beatrix Baumgard tried to target Kazuki's teammate Charlotte Lieben Frau. They had been there under separate orders but could not reveal more. They had attempted to help Kazuki but had nearly killed by Beatrix but Kazuki had rescued them and covered for their escape. Though Yukari was clearly uncomfortable Hajime wanted to properly express their gratitude. He offered Kazuki a Sacred Treasure that they had confiscated from him earlier that day but Hajime had "conveniently forgotten" to hand in. Both Hajime and the teacher were among those who felt strongly that the official stance of the government that such things were "dangerous" was incorrect. That it was part of a conspiracy of those in power to keep Magical Swordsmen in a disadvantangeous position compared to their counterparts. Since Kazuki knew he would be confronting Beatrix again so he accepted their gift. It is likely no one in that room knew that the whole scenario had been staged by the Headmaster Tsukikurō Otonashi. Many men in power in Japan had no desire to submit to the authority of a 15 year-old "king", especially one who had proven unwilling to blindly follow orders he could not agree with. The theft of this Sacred Treasure was one of many false changes that would shortly be levied against him in an effort to destroy his reputation as a king.

When the Knight Order declared Kazuki a dangerous Illegal Magician the Knight Academy was ordered to arrest both him and Lotte. Lotte had fled a death sentence in Germany for the crime of being an Illegal Magician. The Germans were demanding her return and as the experts on Loki the government was looking for any excuse to let them have what they wanted in exchange for their help with him. When Kazuki had stopped their attempts to "arrange an accident" for her they were now seeking any flimsy excuse they could invent to deport her. The Magic Department staff were the only ones told of the order. Liz found herself the only one voicing any objections to the plot. In the end she could do nothing as the strongest Magical Stigma Kaguya Otonashi was given the order to arrest her friends. Liz realized that she might not be able to trust anyone in her division to help so she had contacted her former partner and he dispatched Kōhaku Hikita to help. She possessed several Scared Treasures of her own and was able to secure their escape just as they were about to be defeated.

They all wound up sharing a small room due to lack of space. Kazuki, Lotte, their teammate Mio Amasaki and their classmate Koyuki Hiakari who had tried without success to help them. They were unconscious or still suffering the after-effects of Kaguya's powerful magic. Kazuki was grateful for the rescue and glad to know he still had a few friends he could trust at the Academy. The radical element had plans to turn this situation to their advantage. There would be an important school meeting in a few days. There they planed to expose the Magic Division and their role in the plot to claim Lotte's life. While at the same time glorifying themselves for protecting her and ensuring her continued safety. All this would boost their status while doing great harm to the impeccable reputation of the Magic Division. Kazuki did not like the idea of the school being divided any further than it already was, but knew it was probably their best shot at keeping Lotte safe. Unsure of which side Kazuki would choose, they told him they would be confined until the day came. They could break out of course but their were many supporters nearby with Sacred Treasures of their own. They seemed to have a vendetta against the other Student Council. They also spoke of ridding the staff of the corrupt elements that kept them in an inferior position. It sounded to a worried Kazuki like they planned to go to war.